Chimney-cap.



No. 808,075. PATENTED DEC. 26, 1905.

' C. W. EGKHART.

CHIMNEY GAP.

APPLICATION FILED APR.1B,1905.

CHARLES W. ECKHART, OF SHOHOLA, PENNSYLVANIA.

CHIMNEY-CAP- Specification of Letters Patent.

Patented Dec. 26, 1905 Application filed April 18,1905. Serial No. 256,213-

To all whom it may concern:

Be it known that 1, CHARLES W. EGKHART, a citizen of the United States, residing at Shohola, in the county of Pike and State of Pennsylvania, have'invented certain new and useful Improvements in Chimney-Gaps, of which the following is a specification.

This invention relates to improvements in chimney-caps; and itconsists,essentially, of a chimney having approximately horizontal openings leading outward from the flue and means whereby other openings on the windward side are automatically closed.

It has for its object to prevent the wind from blowing down the chimney and causing smoky fires and also to keep out rain and snow.

For a full description of the invention and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings.

WVhile the invention may be adapted to clifferent forms and conditions by changes in the structure and minor details without departing from the spirit or essential features thereof, still the preferred embodiment of the invention is shown in the accompanying drawings, in which I Figure 1 is a vertical sectional view. Fig. 2 is a bottom plan view of the chimney-cap. Fig. 3 is a perspective view of the weather shield and parts connected thereto.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The block 1 or chimney-cap proper is preferably made of reinforced concrete, but may be made of any other suitable material, and is provided on its lower face with intersecting grooves 2, which form an arch 3 over the chimney-flue. An opening 4 is provided in the top of said arch 3, and a sleeve 5 is embedded therein, which serves as a bearing within which a rod 6 rotates. vane 7 is attached to the top of the rod 6, and a shield 8 is attached to the bottom of said rod, so that as it revolves Within the arch 3 it will close the respective openings as it comes opposite to them. Acollar 9 is placed upon the rod 6, so that it will bear upon the top of the sleeve 5 to prevent the rod 6 from slipping out of position. The shield 8 is approximately the shape of a spherical triangle, the vertex of which is provided with an open- A weathering 10, through which the rod 6 passes. The base of the shield is attached to said rod by a brace 11, which consists of a strip of metal bent around the lower part of the rod at its center point, the ends of which extend outward and support the base of the shield. The shield and weather-vane are so arranged with relation to each other that the wind will automatically cause them to revolve so as to close the windward opening. While I have described these openings as being semicircular in cross-section and formed by intersecting grooves, it will be evident that any suitable openings in the side of the chimney may be used without departing from the spirit of the invention.

From the foregoing description it will be readily understood that this device will effectively prevent the wind from going down the chimney,and thus eliminate the annoyance due to smoky fires, and is at the same time so simple in construction that it will not easily get out of order.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

A chimney-cap construction comprising a cap fitting over the chimney and provided on its lower face with intersected grooves forming exits for the smoke, a sleeve 5 embedded in said cap and extending through the same whereby to form a tubular bearing, a vertical shaft or rod 6 mounted in said bearing 5 and provided above the bearing with acollar 9 designed to rest upon the top of the hearing 5, the upper end of said rod carrying a vane, and the lower end of said rod extending into the cap to a point near the bottom thereof but free from connection therewith, a shield 8 mounted with its upper end on said rod just below the said bearing 5 and extending downwardly and outwardly therefrom, and a brace 11 consisting of a single strip or piece of metal bent at its middle portion around the lower part of the said rod or shaft and secured thereto, the ends of said brace diverging and attached to the base of the shield at opposite edges ofthe latter, as and for the purpose set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES w. ECKHART. [n s] WVitnesses FRANK KELLER, PETER EOKHART. 

